Ah, that makes perfect sense now! I didn't realize that Horndean was such a tiny fly-speck.
We had a record of a marriage at Horndean, 30 Jan 1701, Andrew Nickson & Mary Clasey. Horndean sounds too small to have ever had it's own church. How would a marriage happen there? Probably people went to Ladykirk for baptisms, marriages, funerals? Was there even a cemetery at Horndean? Where could records be found of deaths at that occured there?